package me.zhengjie.resources.controller;

import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author Administrator
 * @version 1.0
 **/
@RestController
public class LoginController {

    @RequestMapping(value = "/login-success")
    public String loginSuccess() {
        return getUsername() + " login-success 登录成功";
    }

    /**
     * 测试资源1
     *
     * @return
     */
    @GetMapping(value = "/admin/p1")
    @PreAuthorize("hasAuthority('p1')")//拥有p1权限才可以访问
    public String r1() {
        return " /admin/p1 " + getUsername() + "访问资源1";
    }

    /**
     * 测试资源2
     *
     * @return
     */
    @GetMapping(value = "/user/p2")
    @PreAuthorize("hasAuthority('p2')")//拥有p2权限才可以访问
    public String r2() {
        return "/user/p2 " + getUsername() + "访问资源2";
    }

    // 获取当前用户信息
    private String getUsername() {
        String username = null;
        // 当前认证通过的用户身份
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        // 用户身份
        Object principal = authentication.getPrincipal();
        if (principal == null) {
            username = "匿名";
        }
        if (principal instanceof UserDetails) {
            UserDetails userDetails = (UserDetails) principal;
            username = userDetails.getUsername();
        } else {
            username = principal.toString();
        }
        return username;
    }
}
